Electric switch.



G. W. GOODRIDGE.

ELECTRIC SWITCH.

APPLICATION FILED APR.25, 1913.

1,201,170. Patented Oct. 10,1916.

TED sTATEs PATE1STOFFICE.

GILBER w. GOODRIDGE, or BBIDGEPORT, oon vncTIc T, ASSIGNOR TO THE BRYANT ELECTRIC COMPANY, OF smncnron'r,..-commcTIoU A CORPORATION or con- NECTICUT.

To all whom, it may concern Be it known that I, GILBERT W. Goon- RIDGE, a citizen of the United States of America, and residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented a certain new and useful Improvement in Electric Switches, of which the followingis a specification.

My invention relates to electric switches and particularly to the type of switch adapted to be mounted in an electric lampv socket, the-object of my invention being to provide a simple and efficient mechanism of improved type.

In the accompanymg drawings, Figure 1 is a vertical section through a lamp socket in which my invention is embodied in one form; Fig. 2 is a plan of this switch mech anism in position on one of the buttons forming the socket body; Fig. 3 is a vertical section through the switch mechanism on the line 33, Fig. 2; and Fig. 4 is a perspective bf certain of the switch parts separated. Fig. 5 is an end elevation of the switch spindle showing the position of the operating cams thereon.

The present switch is of the type in which an oscillating switch piece is rocked on its ivot by a switch spring, one end of which 1s shifted to one side'or the other of the axis of oscillation of the switch piece, by a manually controlled operating mechanism. The socket in. which the switch 'is here embodied comprises the usual casing cap 5 and shell 6, with insulating lining 7. The socket body of insulating material is formed from two buttons A and B united by screwbolts 8 and recessed on their meeting faces to form a switch chamber 9. Lateral recesses 10 and 11 accommodate the wire terminals 12 and 13, one of the latter being in constant connection with the shell terminal 14 of the socket, and the other in constant connection with the switch terminal 15. The other switch terminal 16 is preferably formed in one with the center contact 17 of the socket and is secured with thelatter by the rivet 18 in known manner.

Within the switch chamber 9 is mounted the switch frame 19 held in position by the screw 20. While the frame may be of any suitable form, that here shown is shaped from sheet metal bent to form end u rights 21 and side uprights 22. Outward y projecting lugs 23 on the latter serve as pivots the rocker 28.

' ELECTRIC swITOH.

Specification of Letters Patent. Patented Oct. 10, 1916.

Application filed Apri125, 1913. 'Serial No. 763,604. Y

by the switch spring 25 mounted on the plunger 26 and bearmg at one end against.

the closed end of the yoke (through which The oscillation ofthe switch iseffected' the end of the plunger passes) and at its gaged in any suitable manner, for example,

other end against the head 27 of the plunger. 1 The latter is subject to the vertical move ment of the rocker '28, with which it is en-' by means of a sort ofbayonetslot jointbe tween the slot and aperture 29 in the head- 27 and the cross bar 30 formed in the end of the rocker. Obviously as the head of the plunger is shifted past the axis of oscillation of the switch piece-24 in one-direction or the other, the spring 25' is not only further tensioned, butv its efl'ort is directed to throw the switch yokeinto either the Olf or on po'sition, -a s may be, depending upon the side ofthe axis ofoscillation to which the head 27 of the plunger has been shifted. The movement of the plunger, as above stated, is controlled by the rocker 28, ,the

axis 31 of which is pivoted in-the side uprights of the frame; The rocker in turn is subject to the rotation of the switch key 32 on the spindle of which are mounted, at right angles to each other, the two cams 33 and 34 spaced apart and bearing, in assembled condition, against the lower face of therocker 28 on opposite sides of its axis of oscillation. In the position shown in Fig. 3, the head 27 of the plunger has been depressed through the action of the cam33. on On a quarter turn of the switch key the cam 33 becomes temporarily inoperative, while the cam 34 turning into vertical vposition tilts the rocker 28 in the opposite direction, thus lifting the head 27 of the plunger. A further quarter turn of the switch key restores the switch to its first position throughthe action of cam 33, and so on. Inasmuch as the cams aredouble acting, a quarter turn of the switch key in either direction brings one or the otherv of the cams 33, 34 into eifective operation to oscillate the switch piece through the tilting of the rocker 28.

means thereon for tilting said rocker to shift said end thereof past the axis of oscillation of the switch piece.

2. In an electric switch, an oscillating switch piege, a spring one end of which is operatively connected to said switch piece to efiect its oscillation, an oscillating rocker having an axis substantially parallel to that 7 switch piece, a spring one end of which is.

of the switch piece, an operative connection between one end of said rocker and the other end of said switch spring, and means for oscillating the rocker to shift said end thereof past the axis of oscillation of the switch piece,.said means comprising a switch spindle having an axis arranged at an angle to the axis of the switch piece, and means on said spindle operatively engaging said rocker to actuate the latter on the rotation of the spindle. Y

3. In an electric switch, an ostzillating switch piece, a spring one end of which is operatively connected to said switch piece to effect its oscillation, an oscillating rocker having an axis substantially parallel to that of the switch piece, an operative connection between one end of said rocker and the other end of said switch spring, in combination with a switch spindle and means thereon engaging the rocker on opposite sides of its axis to shift said end past the axis of oscillation of theswitch piece.

4. In an electric switch, an oscillating switch piece, a spring one end of which is operatively connected to said switch piece to effect its oscillation, an oscillating rocker having an axis substantially parallel to that of the switch piece, an operative connection between one end of said rocker and the other end of said switch spring, in combination with a rotary switch spindle, and cam means thereon engaging said rocker on opposite sides of its axis to tilt the rocker to shift said end past the axis of oscillation of the switch piece.

5. In an electric switch, an oscillating operatively connected to said switch piece to efi'ect its oscillation, an oscillating rocker having an axis substantially parallel to that of the switch piece, an operative connection between one end of said rocker and the other end of said switch spring, a rotary switch spindle, and cams set at an angle to each other on said spindle and on opposite sides of the axis of said rocker and engaging the latter on the rotation of the spindle to shift the spring-engaging end of said rocker past the axis of oscillation of the switch.

6. In an electric switch, an oscillating switch piece, a spring one end of which is operatively connected to said switch piece to effect its oscillation, an oscillating rocker having an axis substantially parallel to that of the switch piece, an operative connection between one endof said rocker and the other end of said switch spring, a rotary switch spindle arranged at'an angle to theaxis of oscillation of the switch piece, and cams set at an angle to each other on said spindle and on opposite sides of the axis of said rocker and engaging the latter on the rotation of the spindle to shift the spring-en gaging end of said rocker past the axis of oscillation of the switch.

7 In an electric switch, an oscillating switch piece, a spring one end of which is operatively connected to said switch piece to effect its oscillation, an oscillating rocker having an axis substantially parallel to that of the switch piece, an operative connection between one end of said rocker and the other end of said switch spring, a switch spindle freely rotatable in opposite directions, and cams set at an angle to each other on said spindle and on opposite sides of the axis of said rocker and engaging the latter on the rotation of the spindle in either direction to shift the spring-engaging end of said rocker past the axis of oscillation of the switch.

8. In an electric switch, an oscillating switch piece, a spring one endof which is operatively connected to said switch piece to effect its oscillation, an oscillating rocker having an axis substantially parallel to that of the switch piece, an operative connection between one end of said rocker and the other end of said switch spring, a rotary switch spindle, and cams set at right angles to each other on said spindle and on opposite sides of the axis of said'rocker and engaging the latter on the rotation of the spindle through a quarter turn to shift the spring-engaging end of said rocker past the axis of oscillation of the switch.

9.- In an electric switch piece, a sprin operatively connecte switch, an oscillating one end of which is to said switch piece to effect its oscillation, an oscillatin rocker having an axis substantially paralle to that of the switch piece, an operative connection between one end of said rocker and the other end of said switchspring, a switch spindle freely rotatable in opposite directions, and cams arranged thereon at an angle of to each other on opposite sides of the axis of said rocker and it; the latter 'cams to rock the on the rotation of the spindle through a quarter turn thereof in either direction to shift the spring-engaging-end of said rocker past the axis of oscillation of the switch.

10. In an electric switch, an oscillating U-shaped switch piece, a guide passing freely through the end of said switch piece, a switch spring arranged on said guide and bearing against thefree end of said switch piece, an oscillating rocker having an axis substantially parallel to that of the switch piece and jointed at one side of its axis to said spring guide, in combination with means engaging said rocker to tilt the latter to shift tl1 e end,of said guide engaged thereby past the axis of oscillation of the switch piece. a

11. In an, electric switch, the combination of a supporting frame, aswitch member pivoted on said frame, a plate connected to the switch member, a pin mounted on the frame and constituting a fulcrum for said plate, a spindle, and cams on the spindle and capable of engaging the plate on opposite sides of its fulcrum to rock the plate on said pin as a fulcrum.

12. In an electric switch, the combination of a supporting frame, a switch member pivoted on said frame, and means rocking said member on its pivot comprising a spindle mounted on the frame, a pair of cams fixed on the spindle, a plate and a pin extending across said frame between the cams'and constituting a pivot for said plate, the under side of said plate being engageable by said late on its pivot.

13. In an electric switch, the combination of a supporting frame, a switch member pivoted on said frame, and means rocking said member on its pivot comprising a spindle mounted on the frame, a pair of cams fixed on the spindle, a plate and a pin extending across said frame between the cams and constituting a pivot for said plate, the under side of said plate being engageable by said cams to rock the plate on its pivot, a pin connected to said plate and said switch member, a spring surrounding said pin and pressing against said switch member, the connections between the pin and plate being so located that the oscillation of the plate on its pivot will throw the end thereof connected to said pin across the pivotal connection between said switch member and frame.

14. In an electric switch, the combination of a supporting frame, a switch member pivoted on said supporting frame, a spindle extending transversely of the pivotal support on said switch member, a plate connected to said switch member, a pivot pin for said plate extending substantially parallel to the pivotal support of said switch member and cam means on the spindle capable of engaging the under side of said plate to rock it on said pin.

In'testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

GILBERT W. GOODRIDGE.

Witnesses H. M. WICHERT, A. H. JONES. 

